Police: 'Insanity' search done on Holmes' computer

CENTENNIAL, Colo. (AP) — An investigator says an Internet search on the words "rational insanity" had been done on a computer belonging to Colorado theater shooting defendant James Holmes.

Detective Michael Leiker testified in a pre-trial hearing Thursday. He said he found evidence of the search on a computer he examined during the investigation of the July 2012 shooting at a suburban Denver theater.

Leiker says the search was done on the Bing search engine, but he offered no other details.

It wasn't clear who did the search or when it was done. Neither prosecutors nor defense lawyers asked him to elaborate.

Holmes has pleaded not guilty by reason of insanity to multiple counts of murder and attempted murder. He's accused of killing 12 people and injuring 70. Prosecutors are seeking the death penalty.

In March, his lawyers said that Holmes had offered to plead guilty if prosecutors didn't seek the death penalty, but prosecutors rejected the deal.

Prosecutors say Holmes spent months buying guns and ammunition before he dressed up in a police-style helmet and clothing and began shooting in the Aurora theater.

They say he also rigged his apartment with home-made bombs designed to divert police from the theater. They didn't explode.

Defense lawyers acknowledge Holmes was the gunman, but they say he was mentally ill and "in the throes of a psychotic episode."

Holmes underwent a mandatory state sanity evaluation after he entered his insanity plea. The report is secret, and prosecutors and defense lawyers cannot speak outside court about it because of a gag order.

Prosecutors say Holmes also put up profiles last year on Adultfriendfinder.com and Match.com that had the tagline, "Will you visit me in prison?" They argue that shows he knew the consequences of his planned actions.